{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T20:54:42Z","timestamp":1773089682802,"version":"3.50.1"},"reference-count":31,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2025,12,12]],"date-time":"2025-12-12T00:00:00Z","timestamp":1765497600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"2-year Research Grant of Pusan National University"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: This study aimed to compare the final impressions obtained using three different impression techniques in completely edentulous patients, focusing on the clinical applicability of the JB Tray\u00ae for immediate custom tray fabrication with a polycaprolactone-based thermoplastic resin. Methods: Five edentulous patients were recruited for a preliminary clinical evaluation, and three impression techniques were tested: (1) JB Tray\u00ae (JB), which allows simultaneous border molding and final impression taking; (2) the conventional modeling compound border-molded technique (MC, control); and (3) the one-step silicone border-molded technique (OS). All impressions were made by a single prosthodontist, and the internal surfaces were digitized using a 3D scanner for analysis of internal fit. Each arch was divided into reference regions for quantitative comparison. Statistical significance was set at p &lt; 0.05. Results: Color map analysis (threshold of \u00b11.0 mm) revealed that the JB Tray\u00ae group exhibited wider border extension in both the maxilla and mandible compared with the modeling compound and silicone groups, with a more pronounced effect in the mandible. However, no statistically significant differences in overall internal fit were observed among the three methods (p &gt; 0.05). Conclusions: These preliminary results due to small sample size suggest that the JB Tray\u00ae enables efficient impression taking in edentulous patients and can serve as a viable alternative to conventional custom tray techniques. Further research with a larger sample size is warranted to support widespread clinical application.<\/jats:p>","DOI":"10.3390\/jcm14248804","type":"journal-article","created":{"date-parts":[[2025,12,12]],"date-time":"2025-12-12T12:52:31Z","timestamp":1765543951000},"page":"8804","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Comparative Analysis of Traditional Self-Curing Resin Custom Tray and Thermoplastic Tray for Final Impressions in Edentulous Patients: A Pilot Study"],"prefix":"10.3390","volume":"14","author":[{"given":"Jong-Won","family":"Choi","sequence":"first","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mi-Jung","family":"Yun","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"},{"name":"Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Il-Hwan","family":"Jang","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Da-Hae","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"You-jin","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"},{"name":"Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jung-Bo","family":"Huh","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"},{"name":"Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1264","DOI":"10.1111\/joor.13070","article-title":"A parallel 3-group randomized clinical trial comparing different implant treatment options for the edentulous mandible: 1-year effects on dental patient-reported outcomes and chewing function","volume":"47","author":"Hartmann","year":"2020","journal-title":"J. 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